In Olympus Academy, the first and only school to house Filipino demigods and mythological creatures, students are divided into four classes: Alpha, Beta, Gamma and Omega. Carrying one of the titles comes with great responsibility, especially to Reign, a girl who continues to live through the privilege and burden of being an Omega. All eyes are on her class as a new student arrives, bearing a legend that many do not believe and some, refuse to. Reign decides to dive deep into the legends of Olympus Academy, in efforts to understand their new member, and eventually she will. She will come to know two cruel truths about their very existence: Mythological creatures like her are being hunted for power. And as for the demigods who belong to the same class as her, they were a consequence, a threat, an ultimatum of what was once destined. To be the hunted or become the hunters? To be the protectors or become the protected? The Omegas need to make a choice. But being descendants of the original Omegas, demigods who defeated gods, titans, and even overcame Chaos, the first deity to ever exist in mythology... They know they're just as powerful to choose another option that's not given: Become no one but themselves.

◤ SEMIDEUS SAGA #04 ◢ Promise of the Twelve - End of the rebellion as prophecied by the titan goddess, Mnemosyne. It seems like fighting a titan is not enough. From the ends of the world, our heroes will each have to use their unique abilities to stop the rebellion and prevent Cronus' awakening. The Alphas are the Omegas. One by one, they will learn of their destiny. And for them, this is all about what the rebellion will bring to the mortal realms. Their primary mission as children of the Olympians is to protect the world, afterall. Olympus Academy. The Elysian Oracle. The Prophecies of Rhea. The Promise of Mnemosyne. Alpha Omega. All these lead to the Rebellion. But which one is the key? Or rather... Who holds it?